Evidence map›Paper›PMID 32082106›Full record

ArticleFrontiers in neuroscience2020

Effect of Expectation on Pain Processing: A Psychophysics and Functional MRI Analysis.

Luke A Henderson, Flavia Di Pietro, Andrew M Youssef, Sinjeong Lee, Shirley Tam, R Akhter, Emily P Mills, Greg M Murray, Chris C Peck, Paul M Macey

Abstract read
In one paragraph

Article in Frontiers in neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Placebo and nocebo effect in pain.Handbook of clinical neurology · 2025
    Review
  7. Review
  8. Article
  9. Re-examining the Mysterious Role of the Cerebellum in Pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Temporal-spectral signaling of sensory information and expectations in the cerebral processing of pain.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  15. Article
  16. Brainstem Mechanisms of Pain Modulation: A within-Subjects 7T fMRI Study of Placebo Analgesic and Nocebo Hyperalgesic Responses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Luke A HendersonDepartment of Anatomy and Histology, The University of Sydney, Sydney, NSW, Australia.
Flavia Di PietroDepartment of Anatomy and Histology, The University of Sydney, Sydney, NSW, Australia.
Andrew M YoussefDepartment of Anatomy and Histology, The University of Sydney, Sydney, NSW, Australia.
Sinjeong LeeFaculty of Dentistry, The University of Sydney, Sydney, NSW, Australia.
Shirley TamFaculty of Dentistry, The University of Sydney, Sydney, NSW, Australia.
R AkhterFaculty of Dentistry, The University of Sydney, Sydney, NSW, Australia.
Emily P MillsDepartment of Anatomy and Histology, The University of Sydney, Sydney, NSW, Australia.
Greg M MurrayFaculty of Dentistry, The University of Sydney, Sydney, NSW, Australia.
Chris C PeckFaculty of Dentistry, The University of Sydney, Sydney, NSW, Australia.
Paul M MaceyUCLA School of Nursing and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pain is a complex phenomenon that is highly modifiable by expectation. Whilst the intensity of incoming noxious information plays a key role in the intensity of perceived pain, this intensity can be profoundly shaped by an individual's expectations. Modern brain imaging investigations have begun to detail the brain regions responsible for placebo and nocebo related changes in pain, but less is known about the neural basis of stimulus-expectancy changes in pain processing. In this functional magnetic resonance imaging study, we administered two separate protocols of the same noxious thermal stimuli to 24 healthy subjects. However, different expectations were elicited by different explanations to subjects prior to each protocol. During one protocol, pain intensities were matched to expectation and in the other protocol they were not. Pain intensity was measured continuously via a manually operated computerized visual analogue scale. When individuals expected the stimulus intensity to remain constant, but in reality it was surreptitiously increased or decreased, pain intensity ratings were significantly lower than when expectation and pain intensities were matched. When the stimulus intensities did not match expectations, various areas in the brain such as the amygdala, anterior cingulate cortex (ACC), dorsolateral prefrontal cortex (dlPFC), and the midbrain periaqueductal gray matter (PAG) displayed significantly different patterns of activity compared to instances when stimulus intensity and pain expectations were matched. These results show that stimulus-expectancy manipulation of pain intensity alters activity in both higher brain and brainstem centers which are known to modulate pain under various conditions.

Indexed as

functional magnetic resonance imagingpain expectationspain intensitypain modulationsomatosensory cortex

Identifiers

PMID32082106
PMCPMC7004959

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.